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Chinese chipmaker YMTC puts $4.9b IPO on hold in weak market

Reported by DealStreetAsia
Nov 5, 2026· 2 min read
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Key Takeaways
  • • YMTC, China's largest NAND flash maker, has put its Shanghai IPO on hold, according to a company memo and people familiar with the matter reported by Reuters.
  • • CCSH Corporation, YMTC's parent, had filed in August for a STAR Market IPO targeting 33 billion yuan ($4.9 billion).
  • • The strategic share placement, planned for late October and early November, has been halted for "various factors"; two sources said the delay could last several months.
  • • Regulators are tightening approvals: the CSRC has informally guided investment banks to slow IPOs by AI and chip companies, and the FT reported a pause on new IPOs and suspension of large share sales by existing shareholders.
  • • Market weakness underpins the decision: the CSI300 fell 8.5% in October, its worst monthly performance in over a decade, and the STAR50 dropped 40% from its July peak.
Summary
Chinese flash-memory chipmaker Yangtze Memory Technologies Co (YMTC) has put its planned Shanghai initial public offering on hold, according to a company memo and people with knowledge of the matter cited by Reuters. The IPO, filed by parent CCSH Corporation in August on the STAR Market, aimed to raise 33 billion yuan ($4.9 billion). The company was preparing to launch a strategic share placement in late October and early November, but that process has been suspended due to "various factors," according to an internal note sent to staff. The company did not elaborate, and it did not respond to Reuters' request for comment. Two of the sources said the delay could last several months, and YMTC will likely go public in the first half of 2027, subject to market conditions.

The delay carries implications for YMTC's capacity expansion plans. The company, China's largest NAND maker and one of the chip champions Beijing considers essential to technological self-reliance, has grown quickly since a global memory chip shortage emerged last year, taking Chinese market share from established suppliers such as Samsung and SK Hynix. Its IPO application remains in the "inquiry stage" on the Shanghai Stock Exchange website.

The decision comes amid broader weakness in Chinese equities. The blue-chip CSI300 index slumped 8.5% in October, its worst monthly performance in more than a decade, while the STAR50 index of Shanghai-listed chip and AI firms fell 40% from its July peak through the end of October. Reuters reported that regulatory scrutiny of new listings has tightened over recent weeks. The China Securities Regulatory Commission has given informal guidance to investment banks to slow IPOs by AI and chip companies, according to four sources. The Financial Times separately reported on Tuesday that the regulator has told banks to pause IPOs and suspended large share sales by existing shareholders until markets recover. The CSRC did not respond to Reuters' request for comment.

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Sources

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DealStreetAsia Chinese chipmaker YMTC puts $4.9b IPO on hold in weak market